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I need to redo the outside of my window frames and have noticed that some of them appear quite grey and a bit mouldy. How should I prepare them?

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I need to redo the outside of my window frames and have noticed that some of them appear quite grey and a bit mouldy. How should I prepare them?

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The grey areas are loose, dead timber fibres where the weather has started to affect the timber as a result of the coating breaking down and they need to be removed. A timber cleaner, suck as Cabot’s Deck Clean, is ideal for these situations. The first thing to do however, is to sand off what remains of the existing coating. Next, after diluting the Deck Clean as instructed by the label, scrub it into the grain of the timber making sure that you can get to all areas of the frame, paying particular attention to the joints. Leave to stand for the specified time period, before hosing down to rinse off all of the surface mould, dirt and Deck Clean residue. If the mould was particularly severe, or you want to be doubly sure to kill any mould spores remaining within the timber grain, a further treatment with a 5% solution of household bleach which will do the trick. Care must be taken to ensure that both the Deck Clean and bleach solution are thoroughly rinsed away, and the timber dry before

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